Spectacle temple



Oct 9, 1928.

- G. H. CHASE E'r AL srsoncma raum:

' Filed nay 17, 1926 ear hook the forward fend of which is se- Patented Oct. 19228.

UNITED stares l ,16,685,797 PATENT' OFFICE. f

GEORGE H. CHASE AND OSCAR H. vrientri, or ROCHESTER, NEWv YORK, ASSIGNORS rro BAUsOH AND Loivrn OPTICAL OOMEANY, or NEWYYORAK, n. Y., A OOREORATION OF NEW YORK;

Application inea may i7,

temples, and more particularly to vtemples of the cable type. From a more limited aspect, the invention relates to cable temples comprising non-metal material reinforced by meta-l cores.

A well known cable temple of the abovedescribed character is provided with a forward non-metal member the rear end of .which is provided with a bore, anda metal cable cured in the bore. A non-metal cable Vis mounted over the rearward projecting portion of the metal cable. One of the defects of this temple is the weak joint between the non-metal forward portion and the. metal and the non-metal cables that'extend rear-A ward therefrom.

One of the Objects of the present invention,l therefore, is to strenghten the joint between the non-metal forward portion and the metal cable, and between the non-metal forward portion and the non-metal cable. Y

To these'. ends', a feature of the invention contemplates the provision of a. countersinlr on one of the non-metal members and a portion upon the other non-metal vmember proj ecting into the countersinlr, the parts being secured together in assembled relation.

With these and other objects in view, the invention consists of the improved spectacle temple a preferred embodiment of which is hereinafter described, illustrated in the accompanying drawings and defined in the appended claims.

In the accompanying drawings, Fig. 1 is an elevation of a cable temple constructed according to a preferred embodiment of the present invention, shown hinged to a fragment of a lens-holding frame; Fig. 2'is'an enlarged. longitudinal section of the same; Figs. 3 and 4 are fragmentaryV perspective views of the rear end of the forward non-metal portion and the forward end of the non-metal cable, respectively; and 5 is a fragmentary longitudinal section of the rear end of the temple. i

The improved cable temple of the present invention is illustrated as comprising aforward portion 4 of plastic, non-metal material, like celluloid, zylonite or other composition. `its outer surface usually tapers from its forward end towards its rear end and its sides are milled. It is shown pivotally connected arno-Tacna TEMPLE.

'serial No.' 109,583.

at its forward end to a lens-holding frame 2 by a hinge (not shown). The rear end 153 of the forward portion 4 is longitudinally bored at 150. The longitudinal bore 150 is of approximately uniform dimension to start with.

The forward end 155 of a exible, helically wound, reinforcing metal cable rod 154l is struck up Or swaged to provide one o1' more...

fins 176. Four fins are illustrated. The finned end 155 of the cable rod 154'is then forced by pressure into the bore 150. The fins 176 bite into the walls of the bore 150 and therod 154 becomes thus locked in place. Owing to the helical nature of the cable of the metal rod 154, the fins 176 become provided with corrugations or projections 177 that bite into the walls of the bore 150 and help to lock the forward end of t-he rod 154,`

. of the forward member 4. Thisy feature of the invention is not claimedv herein as it forms l the subject matter of a copendin g application Serial No. 50.543, filed August 17, 1925.

An intermediate portion of a non-metal tubo 36 is cut into helical or cable form to render it very yielding. As non-metal material of the above-described character 1s very resilient and flexible, the non-metal tube thus cut is maintained in its helical form by its own resiliency. The rear and the forward ends of the helically cut tube 36 are left uncut to provide sleeves 6 and 8. The rear end of the por tion 4 is countersunlr at 14 and the forward. end of the portion 36 is milled at 16, the milled portion beding cemented in the countersunlr portion to secure the non-metal parts together.' The rear en dor tip 6 of the helically cut tube is provided with a recess 42 of larger diameter than the bore 34 of the tube.

The metal cable core 154 is mounted in the bore 34 of the tube 36`and the rear end of the core 154 may be secured in the uncut sleeve 6 in any desired manner, preferably by providing' the rod 154 with a flattened terminal enlargement 44 that is seated in the recess 42. The flattening may be effected as described in a copending application, Serial No. 96,180 filed March 20, 1926, or in any other desired manner. Owing to the resilient nature of the non-metalmaterial.' the parts of the helical element 36 can be very snugly pulled together by this construction. A plug 46 is mounted in the recess 42 to conceal the enlargement 44e.

It will beunderstood that the invention is not restricted to the exact embodiment thereof that is illustrated and described herein, but is capable of modification in other respects also by persons skilled in the art. All such modifications are considered to fallwithin the spirit and scope of the invention, as defined in the appended claims.

What is claimed is l. A spectacle temple comprising a memiber adapted tobe hinged at the forward end, a reinforcing` member projecting rearward beyond the rear end of the first-named inember, and .a non-metal helically cut tube meinber mounted on the projecting portion of the reinforcing member, one of the first-named `and third-named members -having a countersink yand the other having a portion secured in the countersinlr.

2. A spectacle `temple comprising a member vadapted to be hinged at the foi'ward end, a iieXible reinforcing member projecting rearward beyond the rear end of the first-named member, and a flexible non-metal helically cut :tube member mounted over the projecting` portion ofthe reinforcing member, one of the first-named and the third-named members 'having a conntersink and the other having a milled portion cemented in the countersink.

3. A spectacle temple comprising a. nonnietal member countersnnk at its rear end and adapted to be hinged at the forward end, a 'flexible reinforcing member projecting rearward beyond the rear end of the non-metal member, and a flexible non-metal helicallycut tube member mounted over the projecting portion of the reinforcing member, the forward portion `of the tube member not being helieally cut but being reduced in cross section, the reduced portion being cemented in the countersink. Y

el. A spectacle temple comprising a nonnietal member adapted to be hinged at the forward end and having a rear end portion, a reinforcing member projecting rearward beyond the rear end portion, and a non-metal helicallyecnt tube mounted over the projecting portion of the reinforcing member and having' a non-helical forward end portion,

one of the said end port-ions being countersunk and the 'other being securedv in the countersinl. f

5, A spectacle temple comprising a nonmetal member adapted to be hinged at the for ward end and having a countersunlrrear end portion, a reinforcing member projecting rearward beyond the rear end portion, and a non-metal tube cutl into helical form in the bore of which the projecting portion of the reinforcing member is mounted, the forward end of the tube not lbeing helically cut, Whereby a sleeve is provided at the forward end of the tube, the sleeve being secured in thel countersunk i'eai end portion.

In testimony whereof, we have 'hereunto subscribed our names. j

GEGRGE H. CHASE. Y 'OSCAR H. FLODIN. 

